Company lists · Data refreshed September 2026
Top 25 Consultancy agencies based in Nantes, France
RevenueBase identified 244 consultancy agencies headquartered in Nantes, France as of September 2026 and tracks 1,254 professional contacts across them, including 487 with verified work emails. Paris is the largest hub.
This list covers consultancy agencies headquartered in Nantes, France, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 24, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.
The 25 largest consultancy agencies based in Nantes, France
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 96 contacts → | ||||
Indirect evidence “Agence conseil en communication.” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 2 | 92 contacts → | ||||
Indirect evidence “Ideuzo est une agence de communication RH, nous accompagnons les entreprises dans la lecture de plus en plus complexe du marché de l’emploi.” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 3 | 70 contacts → | ||||
Indirect evidence “The LINKS, 1ère agence de création de valeur Notre quotidien : booster la marque, les ventes et les équipes de nos clients.” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 4 | 54 contacts → | ||||
Indirect evidence “Le Groupe Huit intervient depuis 1967, comme conseil auprès des gouvernements, des collectivités locales et des organismes de financement internationaux, dans plusieurs domaines…” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 5 | 51 contacts → | ||||
Indirect evidence “Cabinet d'Expertise Comptable né du rapprochement des deux cabinets Fradin & Associés et Secogerec, installés au centre ville de Nantes et en Sud Loire, Ozéo travaille aux côtés…” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 6 | 49 contacts → | ||||
Indirect evidence “Nous, c’est One Ace.” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 7 | 49 contacts → | ||||
Indirect evidence “Audencia Junior Conseil, Junior Entreprise de l’école de commerce Audencia Nantes, réalise depuis plus de 30 ans des prestations de conseil : étude de marché, étude de…” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 8 | 29 contacts → | ||||
Indirect evidence “Cabinet de conseil en organisation et management, SK Consulting est implanté à Nantes et Niort et accompagne de nombreux acteurs de la région Grand Ouest dans leurs projets de…” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 9 | 22 contacts → | ||||
Indirect evidence “Chez Disobey, nous croyons qu’une communication réussie allie créativité, émotions et impact positif.” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 10 | 21 contacts → | ||||
Indirect evidence “Chez Nouvelle Vague, nous accompagnons les marques dans leurs moments critiques.” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 11 | 18 contacts → | ||||
Indirect evidence “EliteOrga est un cabinet de conseil et formation en organisation et management à Nantes et à Lille.” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 12 | 15 contacts → | ||||
Indirect evidence “CAYOLA est un cabinet indépendant accompagnant dirigeants et entreprises dans leurs enjeux stratégiques, économiques, financiers et organisationnels.” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 13 | 15 contacts → | ||||
Indirect evidence “FIGURA est un cabinet d'expertise comptable et de commissariat aux comptes indépendant, présent depuis de plus de 35 ans à Nantes et Ancenis.” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 14 | 13 contacts → | ||||
Indirect evidence “Canévet et associés a pour vocation d’accompagner les entreprises et institutions publiques, les universités et grandes écoles, dans leur stratégie de communication et la…” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 15 | 13 contacts → | ||||
Indirect evidence “Madison Communication est une agence de communication responsable et engagée, spécialisée dans les projets à impact social et environnemental.” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 16 | 11 contacts → | ||||
Indirect evidence “Vous cherchez à changer d’image, développer votre notoriété, booster vos ventes, renforcer votre marque employeur…?” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 17 | 11 contacts → | ||||
Indirect evidence “Depuis 2001, fidèles à notre ADN, nous avons choisi de faire de l’industrie notre terrain de jeu.” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 18 | 11 contacts → | ||||
Indirect evidence “Ne laissez pas votre carrière au hasard." VENDREDI TREIZE© est un cabinet Français dédié au Notariat offrant une approche complète et sur-mesure du conseil pour les notaires …” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 19 | 10 contacts → | ||||
Indirect evidence “est une agence événementielle basée à Nantes qui vous accompagne et vous conseille avec sérieux et bonne humeur, dans la confection de vos événements professionnels, en France et…” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 20 | 9 contacts → | ||||
Indirect evidence “PH Partners est une société leader dans le conseil stratégique et opérationnel en restauration.” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 21 | 9 contacts → | ||||
Indirect evidence “Modèle hybride entre le savoir-faire métier des cabinets de conseil et la maîtrise technologique des ESN, Inöweeno et ses Digital Lovers sont à vos côtés sur tous les aspects de…” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 22 | 9 contacts → | ||||
Indirect evidence “Eluère & Associés est une agence conseil en communication, derrière chacun de ces trois mots, nous affirmons une vision particulière de notre métier : Apporter à nos clients un…” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 23 | 9 contacts → | ||||
Indirect evidence “Créé en 2012, AMNIS Consulting est un cabinet de conseil en management et projets de transformation.” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 24 | 9 contacts → | ||||
Indirect evidence “TEODYM vous aide à vendre PLUS et MIEUX votre établissement Vous développez votre activité et vous souhaitez en maximiser le profit TEODYM est votre partenaire de proximité 🤝…” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
| 25 | 8 contacts → | ||||
Strong evidence “Artésial consultants est un cabinet de conseil spécialisé dans la performance industrielle des industries de l’agro-alimentaire, de la cosmétique et de la pharmacie.” Source: RevenueBase Database · checked Sep 24, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: consultancy agencies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names consultancy agencies.
- Partial evidence
- Its own public description names part of consultancy agencies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name consultancy agencies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 25 of 244 consultancy agencies based in Nantes, France
See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 487 reachable decision-makers.
Free signup · no credit card
Consultancy agencies based in Nantes, France at a glance
As of Sep 24, 2026Companies by employee count
Email recency for this list is measured across the whole France list rather than for Nantes, so it is reported there. Company counts and contact totals on this page are exact for Nantes, over 244 companies.
How this list was built
Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among consultancy agencies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
- What qualifies
- Companies headquartered in Nantes, France whose own description of what they do matches “consultancy agencies”. Matching reads each company's description, not its industry code or its name.
- RevenueBase Smart Search
- RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names consultancy agencies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
- What we exclude
- Companies whose own description does not clearly place them among consultancy agencies, and records with no verified work email. Companies headquartered outside Nantes are excluded even when they keep an office there.
- Match quality
- In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
- Ranking
- Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
- Verification
- Every listed company carries at least one verified work email, 487 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
- Refresh
- This page's figures were pulled from the company graph on September 24, 2026. Lists refresh periodically as the graph is re-checked.
- Corrections
- Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.
Consultancy agencies by metro in France
- Consultancy agencies in Paris4279
- Consultancy agencies in Lyon624
- Consultancy agencies in Toulouse339
- Consultancy agencies in Bordeaux292
- Consultancy agencies in Nantes244
- Consultancy agencies in Marseille211
- Consultancy agencies in Montpellier190
- Consultancy agencies in Lille165
- Consultancy agencies in Rennes158
- Consultancy agencies in Strasbourg146
- Consultancy agencies in Boulogne-Billancourt104
- Consultancy agencies in Nice87
- Consultancy agencies in Annecy76
- Consultancy agencies in Levallois-Perret72
- Consultancy agencies in Aix-En-Provence70
- Consultancy agencies in Angers65
- Consultancy agencies in Tours65
- Consultancy agencies in Courbevoie64
- Consultancy agencies in Neuilly-Sur-Seine63
- Consultancy agencies in Versailles61
- Consultancy agencies in Aix En Provence57
- Consultancy agencies in Rouen54
- Consultancy agencies in Villeurbanne49
- Consultancy agencies in Caen48
- Consultancy agencies in Boulogne Billancourt47
- Consultancy agencies in Grenoble47
- Consultancy agencies in La Rochelle45
- Consultancy agencies in Reims44
- Consultancy agencies in Orleans43
- Consultancy agencies in Puteaux42
- Consultancy agencies in France41
- Consultancy agencies in Metz40
- Consultancy agencies in Perpignan40
- Consultancy agencies in Clermont-Ferrand39
- Consultancy agencies in Dijon38
- Consultancy agencies in Avignon34
- Consultancy agencies in Neuilly Sur Seine34
- Consultancy agencies in Nimes33
- Consultancy agencies in Clichy32
- Consultancy agencies in Brest31
- Consultancy agencies in Le Mans31
- Consultancy agencies in Vannes31
- Consultancy agencies in Amiens30
- Consultancy agencies in Valence30
- Consultancy agencies in Nancy29
- Consultancy agencies in Besancon28
- Consultancy agencies in Issy-Les-Moulineaux28
- Consultancy agencies in Mulhouse27
- Consultancy agencies in Roubaix27
- Consultancy agencies in Suresnes27
- Consultancy agencies in Montrouge26
- Consultancy agencies in Pau26
- Consultancy agencies in Poitiers26
Frequently asked
What is RevenueBase Smart Search?
RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names consultancy agencies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.
How many consultancy agencies are there based in Nantes, France?
RevenueBase identified 244 consultancy agencies headquartered in Nantes, France as of September 2026, matched on each company's own description of what it does rather than its industry code.
What is the largest company on this list?
Gulfstream Communication, headquartered in Nantes, tops this list with the largest team on record.
Which city has the most consultancy agencies?
Paris leads with 4279 headquartered companies, followed by Lyon (624) and Toulouse (339).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 487 verified decision-maker contacts tracked across these 244 companies.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 24, 2026.
Ready to reach these companies? Verified emails and direct dials for all 244 consultancy agencies based in Nantes, France. Start with a free account, no credit card.
Download this list →Related lists
Consultancy agencies by geography
- Consultancy agencies based in the United States
- Consultancy agencies based in the United Kingdom
- Consultancy agencies based in Brazil
- Consultancy agencies based in France
- Consultancy agencies based in Germany
- Consultancy agencies based in the Netherlands
- Consultancy agencies based in Italy
- Consultancy agencies based in Spain
- Consultancy agencies based in Australia
- Consultancy agencies based in Canada
- Consultancy agencies based in Mexico
- Consultancy agencies based in South Africa
About this data
RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Consultancy agencies based in the United States
- Consultancy agencies based in the United Kingdom
- Consultancy agencies based in Brazil
- Consultancy agencies based in France
- Consultancy agencies based in Germany
- Consultancy agencies based in the Netherlands